Discover
Original Release
05/23/1961
Cast
| Name | Character |
|---|
| Boris Karloff | Self / Self - Host |
| Lloyd Bochner | Prof. Harry Langham |
| Marion Ross | Kay Forrest |
| Jack Mullaney | Fred Forrest |
| Henry Daniell | Count Alexander Cagliostro |
| Patricia Michon | Yvette Dulaine |
| David Frankham | Marquis Robert de Chantenay |
| Peter Brocco | Prof. Thibault |
| Walter Reed | Police Sgt. Burke |
| Frieda Inescort | De Chantenay's Mother |
Directors
Writers
Cast
| Name | Character |
|---|
| Boris Karloff | Self / Self - Host |
| Lloyd Bochner | Prof. Harry Langham |
| Marion Ross | Kay Forrest |
| Jack Mullaney | Fred Forrest |
| Henry Daniell | Count Alexander Cagliostro |
| Patricia Michon | Yvette Dulaine |
| David Frankham | Marquis Robert de Chantenay |
| Peter Brocco | Prof. Thibault |
| Walter Reed | Police Sgt. Burke |
| Frieda Inescort | De Chantenay's Mother |
| Erika Peters | Marie Blanchard |
| Louis Mercier | Monsieur Armand |
Producers
| Name | Role |
|---|
| Douglas Benton | Producer |
| William Frye | Producer |
